| 摘要 |
FIELD: process engineering.SUBSTANCE: invention relates to forestry and can be used for standing wood certification, for example, at lumbering operations, certification of wood stock and semi-finished products and storage of whatever lumber. Besides, it can be used in wood science and engineering ecology at evaluation of ecological conditions by properties of growing tree wood. Proposed method comprises making round saw cuts of test tree with marks of geodesic directions for analysis wood properties along fibres and by radius of tree trunk and cutting of cylindrical specimens. First, saw cut circular cuts are marked at centres of axes of future cylindrical specimens. Then, set of cylindrical cutters are fitted by their cutting part on said round saw cut. Thereafter, cylindrical saw cut round specimens are cut simultaneously by the set of cylindrical cutters. Proposed device comprises the set of cylindrical cutters. Every cutter is made of tool steel shaped to sleeve of ID equal to cut cylindrical specimen diameter. Sleeve one end is shaped to cutter with one-side sharpening on the sleeve outer side while second end has support chamfer to interact with the bush.EFFECT: higher efficiency of cylindrical specimen production on one round saw cut.8 cl, 4 dwg |
